Continental crust composition constrained by measurements of crustal Poisson's ratio

Poisson's ratio, sigma, can be determined uniquely from the ratio of P- to S-wave seismic velocity and provides a better diagnostic of crustal composition than either P- or S-wave velocity alone. Seventy-six new estimates of crustal sigma spanning all of the continents except Antarctica are rep...

Full description

Saved in:

Bibliographic Details
Published in:	Nature (London) Vol. 374; no. 6518; pp. 152 - 154
Main Authors:	Zandt, George, Ammon, Charles J
Format:	Journal Article
Language:	English
Published:	London Nature Publishing 09-03-1995 Nature Publishing Group
Subjects:	Continental crust Crystalline rocks Earth sciences Earth, ocean, space Earthquakes, seismology Exact sciences and technology Geology Igneous and metamorphic rocks petrology, volcanic processes, magmas Internal geophysics Poisson's ratio Seismology Wave velocity polar regions Antarctica delamination models velocity structure underplating seismology P-waves S-waves elastic waves lower crust Poisson's ratio cratons continental crust seismic arrays plate collision age elastic properties
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	Poisson's ratio, sigma, can be determined uniquely from the ratio of P- to S-wave seismic velocity and provides a better diagnostic of crustal composition than either P- or S-wave velocity alone. Seventy-six new estimates of crustal sigma spanning all of the continents except Antarctica are reported.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 ObjectType-Article-2 ObjectType-Feature-1
ISSN:	0028-0836 1476-4687
DOI:	10.1038/374152a0